The endowment effect in economics is a powerful explainer for irrationality. When people own something, they are often not willing to release an item even when someone is willing to pay more than it’s valued at. One of the famous examples is the coffee mug experiment. In this episode of Impractical Jokers, the guys head to an auction house and have one of them act like a remorseful seller who isn’t ready to part with their belongings. After pissing off the auction house members, the joker isn’t willing to buy his own tires back, which his friends submit to the auction house.